Cup finishing apparatus



Dec. 7,1948; w. H. EMERSON CUP FINISHING APPARATUS Filed June 21, 1947 6 She ts-Sheet 1 Fig.1

INV NTOR m 4 m 1 WM ATTORNEYS WITNESSES: W 4/3414 Dec. 7, 1948. w. H. EMERSON CUP FINISHING AFPARATUS Filed June 21. 1947 6 Sheets-Sheet 2 WITNESSES: J, W

ATTORNEYS Dec. 7, "1948. .w. H. EMERSON CUP FINISHING APPARATUS 6 Sheets-Sheet 3 Filed June 21, 1947v WITNESSES: 14 'ANVENTOR 71/344 g g? 6.0 61,, azc- J IVWM 1 M ATTORNEYS w. H. EMERSON CUP FINISHING APPARATUS Dec. 7, 1948.

6 Sheets-Sheet 4 I Filed June 21. 1947 INVENTOR flY Q LM FM WITNESSES W- 4 M Dec. 7,1948. w. H. EMERSON cur FINISHING APPARATUS 6 Sheets-Sheet 5 Filed June 21. 1947 I Dec. 7, 1948. w. H. EMERSON I cur FINISHING AIfPARATUS Filed June 21, 1947 6 Sheets-Sheet 6 71/ @QVENTOR. I

, BY fi /lgw- 6M wvm Patented Dec. 7, 1948 MEAT-ES PATENT OFF-WET 1; one FINISHING APPARATUS; Wallteii. H4; Emensmil. East Liverpool; 4 hi'o,;asSlgpto h The 4 Homer, Laughlin China Company;

Newell;W.-Y'a-i-, a corporation of'Delaware Ammonium-anneal; 1947 SerialNot 756,251

This inventionmeietesttoi agpenatusdonfinish;

in tportially drieduclaw; cups, ,su ch as-trimmin and shaping their, \mpeIu-edgesn turnin feet on. them andt bunnishing lthem I In:thermanufaotuneoichina;andmsemievitreoust dinnerwanecum. from.- =p 1&StiCq;C1a,-,, the first, step is to=e-tshape them bygsjiggenine balls of claw in: plaster: moldsz In z omen t-torbe able: tot-remove the cupstfrom thetmold s; whom they ham d iednenoueh to, beoome-t-leatherhame on selfesupporting; the

' lower ends of the maldrcawitieeshould be tapemd.

and: must not be Lpmvided. with, annular grooves thatfwould lookthemugm-imthe moldst This means thatlfeet-zcamnqthetfonmedmn:thermos by, thetzmaldsi The ftOS fQ suomzcups enemot rounded! and: smooth whemnemoved; from. the molds, and the-cupsyane notwalll the same 'heightm, Alsogthe, outer surfaces on thwcuQSeWhichRWei-ae im contact with-the molds are' not astsmooth ar; desireclm Theneforeg.;the partially dri. cupsvag o placed: out a rotating chunk and-1 thetatop oi' the cup; ist-trimmedl-to shape im; This -is -ca11ed top ping the cum. H mgr-covets cutaround; the bQil'w ton of thorotatine; cup, to formrontumae ioot emi taneously whim isvrelativelyrsimme imc'onstmet tionr; and; which; materially-momma ,theocostw. of finishing; cups-.1 t

In-L- accordancet with; [this mventiomi. means i is imupright onnorsmalt-ppsitiont This stupor-ting 11165113518 Q naisedoneriod eelly the:- s me medete'rmined-zdistancev muonden sfit s oce s w tcupmover 24 claims.

The finished; cup: is lowered away fitom th uck y the same. meensthat; raisesthe. ,cupuoto the thunk. The chuck rotates only while h'o. one is mounted on it. s the 1 1 mm ng! means always rises to, thesame leyel. allpfi thlQ cupserecut down. tobthe same hei ht by the top= pin portion, of they finishing tool; o best r suits, the chuckw is movable vertically] sqthatflt will yield a d not dama e cups olivsmall rw diameter into, which it cannot fit-as flax a oi'nt Jar on cups. The movementof;thev toolnnmi ablyi controlled in, such, away that after-it heng e th side .ofthe cup. it is rocked; downwardly o urn; thencupioot, and: then is rocke upwardly; on the cup o that t o-up er dpilthe tool; wilL top the cunt. Thotool .,isqthenmockectpart wayddownhtne cup againbeforeit is removed from the cup,

Eor rapideoperation aupluxality of! chucks and, tools are mounted. side by, s d and. an ndexing tableisimountect belowvthem. This tablezis plzqa videdtwith gpoupsqof vertical openingsporrespond:

ingjnvnumberfiand position to the chucks..- At a,

loadinghstationt cups-ate placedjn the-table openings and than the table. is indexed .etoflbring the. 135 directly belowlthechucks, Anumber of cup sui ppr in members below thetable then} are elevatedlto liftvthevtcups fromhthe tablet and to raise themflup to the shocks where they are he1:1@c11,;,1-v m the, flnismneneliatio he, cup-supporting membets thenlower the finished cupsto the un denying tableopenings,vandthetableisindexedto move, the finished, cupeto an unloading station wh leflsim lt n sly movingwa other gxoupvof) unfihisllegl cups ,intoposition below. the chucks.

:provided:fortsupportingramertiatlyvdmedtclow o Th brefrred embodiment. of th invention. is. illustrated. in; the, accompanying dmwings in whic h Eig lvis ai plan View, of the machine; Fig.1 2

isaifronteno view-with some pertstbnoke way;

3: is apside mew with parts shown in section Ei sLA ndfi ax horizontal n akenon thfl lines Ive-JV, and "Vi-V, respectively, of. Fig.v 3; Fig; 6; is alfragmentarymsideryiew, similar to Big; 3, showin upsbeingfinishedn and s and were enlarged lviews of arcupl withtthertool; shown in four "succeseieve tppsitionst Ref rring to thesdtawingsha; rectan la home is ,fonmed from: horizonta an le i ons lhsupp nted bytleggzwhich rest on: a bottom=p1ate fienmonted yhorizontal ehannels 4- The-t p hefmm efi covered by a metal plate- 6,- andthe-sides andends of" the, framehlikewisevimaybe coveredwby plates which are omitted; i131,- the drawings. for the; sake of meanness" M unted on bqttom' plate 3 s of: the flame. 115318.31 heazvy Abaseemember-"t on onezfmnt comemot'wh ich a spoedaedwi-ne unit Bf'istmounh 3 ed. The input shaft of this unit carries a pulley 9 that is driven by a belt I I from an electric motor l2 mounted on top of the speed reducer. The slowly rotating output shaft 53 of the reducer extends through it above the input shaft and at right angles thereto. This shaft is supported at the opposite-side of base member 'I by means of a pedestal bearing I4 mounted on the base, a as shown in Fig. 2. The central portion and the ends of this shaft carry a number of cams that will be described later.

Operatively coupled to pulley 9 is ashaft it.

which drives another speed reducing unit l1 mounted on the back portion of the base member, as shown in Fig. 3. The output shaft l8 of this unit extends upwardly and through a bearing l9 mounted in top plate 6 ofthe frame. The upper end of this shaft supports the continuously rotating rotor ii of a Geneva drive mechanism located in a housing 22 mounted on plate 6. The rotor periodically engages and turns at Geneva spider 23 which is keyed to a hollow vertical shaft 24 journaled at its lower end in a bearing 26 in the top of the frame, and also journaled in a .erably four, vertical openings arranged in a straight line and encircled by collars 29 screwed to the top of the table. The inner edges of these collars are undercut for receiving radialtongues projecting from rings 30 that fit inside the collars. by rings of other sizes by first rotating them until their'tongues register with'notches 3i (Fig. 4) inthe' collars. These rings are provided with downwardly tapered central portions for receiving partially dried (leatherhard) and unfinished cups 32. The size and shape ring used depends upon the size and shape of the cups to be finished. Supported above the machine frame by four tubular posts'is a top casting 33. Three of the posts 34 are the same height and extend only y from the top of the frame to the bottom of the casting, but the fourth post 36 is longer andezg tends down into the frame and also. above the casting for a purpose that will appear presently. The casting is provided near .its front end with a line of vertical openings directly above the line of rings 39 in the side of the table which is nearest the front ofthe frame'at the time; Extending down through these openings are flanged vertical sleeves 3'; which are supported byfthe casting and in each of which there is a hollow spindle 38. Each spindle is supported by a bearin 39 encircling its upper end and connected by a flexible metal strip All to the rear end of an arm 42; the front endof which is pivotally connected to one of several small posts 43 mounted on the casting. Downward movement of this arm is'lim ited by an adjustable screw 44 extending up through alateral projection 46 on the post; The spindle is substantially counterbalanced a weight 4'! adjustably mounted on a rod 48 pro- 'jecting forward from the front end of the pivoted arm 42. The lower end of the spindle carries a hollow chuck 49 which is shaped to fit inside of a cup that is loeing'finished. f

Slidably mounted in the spindle is a rod the upper end of which is supported by'a bearing 52 connected by a flexible metal'strip 53 to an arm 54 pivotally mountedon the upper end 'of the post 43. A counterweight 56 is mounted ad The rings can be removed and replaced i,

ill

justably on a rod 57 connected to this arm. Downward movement of the vertical rod 5| is limited by a screw 58 projecting from a lateral projection 59 on the post. The lower end of the rod carries a Weight or head Bl which is slidably mounted in a recess in the chuck. When this head is raised up, into the chuck, the lower end of the headconforms to the shape'of the bottom i Two of these pulleys are driven by a belt 64 from thel p er groove of a double pulley 66 which is driven by an electric motor 61 mounted on the side of a bracket 58 supported by the casting. The other two pulleys 62 are at a different level and are driven by a belt 69 fromthe lowergroo e of the double pulley. The upper end of the motor shaft carries a brake drumlll which normally is engaged by ashoe H mounted in the semicircular end of a lever 12, the central portion of which is pivotally connected to the top of the-motor bracket by a pin 13. The front-end of this lever is connected by a coil spring 14 to a screw T6 adjustably mounted in an arm 11 connected to one side of the motor bracket.

One side of the straight rear portionof' lever 12 is engaged by a roller 18 on the free'end of an arm 19. The opposite'end of the arm is rigidly mounted on the upper end of a rock shaft 8| extending through hollow post 36 in which it is oscillatable. The lower end of the rock shaft carries another arm 82, the free end of which periodically is engaged by a laterally adjustable cam 83 rigidly mounted onthvertical shaft l8 of speed reducer I'I. When this continuously rotating cam engages the lower arm 82; the arm rocks shaft BI and thereby causes the upper arm 19 to swing lever I2 and move the brake shoe out of engagement with'brake drum 69 on the motor. This movement of the lever opens an"'electric switch 84 that turns on the motor. When the lever is moved back to its original position'by means of spring 14, the switch snaps 'ofi "and the brake shoe engages the drum and stops the motor. The off and on periods of the motor are related to the movements of cup finishingtoolsjas will be described presently. i 1 v v i As soon as table 28 comes to rest after indexing a row of cups 32 into position beneath the chucks 49, the cups are lifted from the table and pressed onto the chucks. This is accomplished by means of a row of vertically reoiprocable pins 86disposed below the table in axial-alignment "with the chucks. Rotatably mounted on the-upper .end of each pin is a head 81 having a convex uppersurface adapted to seat against" the bottom of acup supported above it 'byithe table. -"The lower ends of the pins are mounted in abeam 88 extending across the machine withits' nds supported by the upper ends of' apair of" posts 89. These posts are'slidable vertically in tubular guides 9| extending down through plate 6 into the frame. 'A central portion of each guide is cut away to provide 'a slot-in whicha' roller 92 is attached to the side-of the post. The rollers connected to the two posts rest on cams 9 3 rigidly mounted on the oppositeends of shaft 13. *As the cams rotate, they move the'rollers and the posts supported thereby up and down. The ris tool into contact with the cup on the rotating chuck. j

2. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below thechuck adapted to support an upright partially dried clay cup, lifting means for periodically raising'said cupsupporting means the same predetermined distance to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for rotating thechuck with a cup held thereon by said supporting means, actuating means for moving the tool into contact with the cup on the rotating chuck, and stripping means for removing the finished cup from the chuck as said supporting means is lowered.

3. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, said means having a cup-engaging portion rotatable on a vertical axis, lifting means for periodically raising said cup-supporting means the same predetermined distance to fit successive cups over said chuck and to hold them thereon, a finishing tool beside the chuck, driving means for rotating the chuck with a cup thereon, actuating means for moving the tool into contact with the cup on the chuck, and stripping means for removing the finished cup from the chuck as said supporting means is lowered, whereby the cup descends with its supporting means. v

4. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cupsupporting means the same predetermined distance to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for starting rotation of the chuck when a cup is placed thereon, actuating means for moving the tool into contact with the cup on the rotating chuck, and a brake for stopping rotation of the chuck before the finished cup thereon is removed.

5. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cupsupporting means thesame predetermined distance to fit successive cups over said chuck, a finishing tool disposed beside the chuck, an electric motor for rotating the chuck, an electric switch controlling the motor, means for closing said switch after a cup is placed on said chuck, actuating means for moving the tool into contact with the cup on the rotating chuck, and means for opening said switch after a cup has been finished onthe chuck.

6. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis and movable verticallyby pressure from below, vertically movable means below the chuck adapted to support an upright partially dried claycup, lifting means for periodically raising said cupsupporting means the same predetermined distance to lift successive cups into engagement with the chuck, a finishing tool disposed beside the chuck, driving means for rotating the chuck with a cup thereon, and actuating means for moving the tool into contact with the cup on the rotating chuck.

7. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis and provided with a recess in its bottom, a weight movable vertically in said recess and normally projecting from it, vertically movable meansbelow the chuck adapted to support an uprightpartially dried clay cup, lifting means for periodically raising said cup-supporting means the same predetermined distance to lift successive cups into engagement with said weight and chuck and thereby to move the weight up into the chuck, a finishing tool disposed beside the chuck, driving means for rotating the chuck with a cup held thereon by said supporting means, and actuating means for moving the tool into contact with the cup on the rotating chuck, said weight being adapted to strip the finished cup from the chuck as said supporting means is lowered.

8. Cup finishing apparatus comprising a rotatable and vertically movable spindle, a stop for limiting downward movement of the spindle, a cup-receiving chuck mounted on'the lower end of the spindle, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cup-supporting means to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for rotating the spindle, and actuating means for moving the tool into contact with a cup on the rotating chuck. t

9. Cup finishing apparatus comprising a vertical sleeve, a spindle rotatably and slidably mounted therein, a stop for limiting downward movement of the spindle in the sleeve, a rotatable member splined on the spindle at the upper end of the sleeve, driving means operatively connected to said member for rotating it periodically, acupreceiving chuck mounted on the lower end of the spindle, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cup-supporting means to fit successive cups over said chuck, a finishing tool disposed beside the chuck, and actuating means for moving the tool into contact with a cup on the rotating chuck.

10. Cup finishing apparatus comprising a rotatable and vertically movable spindle, a bearing member encircling the spindle and supporting it, vertically adjustable stop means supporting said member, a cup-receiving chuck mounted on the lower end of the spindle, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cup-supporting means to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for rotating the spindle, and actuating means for moving the tool into contact with a cup on the rotating chuck. V

11. Cup finishin apparatus comprising a rotatable hollow vertical spindle, driving means for rotating the spindle, a cup receiving chuck mounted on the lower end of the spindle and provided with an axial opening, a'stripper slidably mounted in said opening and spindle and normally projecting from the bottom of the chuck, said stripper also projecting above the top of the spindle, vertically movable stop means connected to the upper end of the stripper for supporting it, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cup-supporting means to fit successive cups over said chuck,'whereby said stripper is pushed up into the chuck until said supporting. means is lowered, a finishing tool disposed beside the LE9 chuck;candiia'cmating: me nsi-fommoningiathe tool into, contactt-zwittiia cup on the: rotatingrchuoki;

1,12. Clupifinishingeampanatuslrcompnisingia.cupreceivirrg: acl'ru'ckr rotatablerom ac vertical :axis and provided: witir ancentrairvertizealz openings in, its bottom, a 'strippings memberrslidably: mounted in said openingl and normally: projecting: from; the bottom:v oirtlieri ehuckapvertinallyr adrjiistableixstop meansr operativelyr connectedstozisaid imemb en'for limiting; its: downwatdz: movement: in: then chuclh, vertically 1"miovabler means below: the: chuck adaptedrtossuppontzan upright::paritiallyrdniedzciay 'cuprliftingrmeans; towpenioriica-llyu raising: said cup-supporting means to tilt :successivercups over sai'dichuck a .fihisliihgltdol disposed beside the chuck, driving means for rotating the chuck with a cup thereon;"and a tbol carnying mechanism for moving the tool into contact with the cup on the rotating chuck. 1

13. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, a cam for periodically raising said cup-supporting means to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for rotating the chuck with a cup thereon, and actuating means for moving the tool into contact with the cup on the rotating chuck.

14. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup,

lifting means for periodically raisingsaid, cup- I supporting means to fit successive cups over said chuck, driving means for rotating the chuck with a cup thereon, a finishing tool disposed beside the chuck, actuating means for moving the tool into contact with the cup on the rotating chuck, and L tically movable means belowthe chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cupsupporting means to fit successive cups over said chuck, driving means for rotating the chuck with a cup thereon, a finishing tool disposed beside the chuck, a cam for periodically moving the tool toward the chuck, and rocking mechanism operatively connected to the tool for rocking it vertically against the side of a cup on the rotating chuck to top, and foot the cup.

16. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cup-supporting means to fit successive cups over said chuck, driving meansfor rotating the chuck with a cup thereon, a finishing tool disposed beside the chuck, actuating means for moving the tool toward the chuck, and a cam for rocking the tool vertically against the side of a cup on the rotating chuck to top and foot the cup.

17. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried claycup, a continuously rotating cam shaft, a cam on said shaft for periodically raising said cup-supporting means to fit successive cups over the chuck, a finishing tool disposed beside the chuck, a cam on ill) said: shadt? for? perituiicallw moving: the: tool-:1 to wardrthelcliuck;andialcamconisaidvshaftitorzrockr ing: the tool vertically l'algainstz: the rsider of; a cup onztherotatinglchucle to top and footntheicupzu,

' 1:8. 1, Cup z-finishingz apparatus comprising; a: cupreceiving; chuck :rntatabltr-om a verticalaaxisgi vertically: movablepmeansi below the chuck adapted to. suppoartrv am uprightr partialiyr driedl clay; cup, lifting means for periodihally: raising; said cupsupportingxm'eans toifiusuccessivez cups-. over 1 said chuck, a, tool: supportsdisposedubesidez :the: chuck, asfinishing; tool carriedrb yisaidzrtoolisupport, actuaatin g: meansr pivotalily connected;- onsas horizontal axis to: theI t-Ulflt.5111312611123.fortmoliingtfsald.tOOli% wardiltlrerchuchi aznchmeans :lforrrocking; said; tool supportconisaidsaxisrtotrrocldrtheitooli against the 'sidei-otfi ascupromtheerotatingschuck;l

l Gupofinisliih g:apparatusrcompnising ancuprreceiving chuck rotatable on a vertical axis, a positioning member below the chuck provided with a cup-receiving recess in axial alignment with the chuck, a lifting member normally disposed below said recess and adapted to move up through it periodically to lift a cup from said positioning member and fit the cup over said chuck, driving means for rotating the chuck with a cup thereon, a, finishing tool disposed beside the chuck, and actuating means for moving the tool into contact with the cup on the rotating chuck.

20. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, a carrier below the chuck provided with a cupreceiving recess, indexing mechanism operatively connected to said carrier for indexing said recess into axial alignment with said chuck, a lifting member normally disposed below said carrier in alignment with the chuck, elevating means for periodically raising said member through said carrier recess to lift a cup from the carrier and fit it over said chuck, driving means for rotating the chuck with a cup thereon, a finishing tool disposed beside the chuck, and actuating means for moving the tool into contact with the cup on the rotating chuck.

21. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, a table extending under the chuck and rotatable on a vertical axis located at one side of it, said table being provided with laterally spaced cupreceiving recesses, indexing mechanism opera tively connected to the table for moving said recesses in succession into a position in axial alignment with the chuck, a lifting member normally disposed below the table in alignment with the chuck, elevating means for periodically raising said member through the table recess positioned below the chuck, whereby tolift a cup from the table and fit it over said chuck, driving means for rotating the chuck with a cup thereon,

a finishing tool disposed beside the chuck, and,

actuating means for moving the tool into contact with the cup on the rotating chuck.

22. Cup finishing apparatus comprising a row of cup-receiving chucks rotatable on parallel vertical axes, a table rotatable on a vertical axis at one side of the row of chucks and extending under them, said table being provided with a plurality of rows of laterally spaced cup-receiving recesses, the recesses in each row being spaced the same distance apart as said chucks, indexing mechanism for the table for moving each row of recesses in succession into a position below the chucks wherein each recess will be in axial alignment with a chuck, a row of laterally spaced lifting members normally disposed below the table in alignment with the chucks, elevating means for periodically raising said members through the table recesses above them to lift a row of cups from the table and fit them over said chucks, driving means for rotating the chucks with cups thereon, a row of laterally spaced finishing tools disposed beside the row of chucks, and actuating means for moving said tools into contact with cups on the rotating chucks.

23. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cupsupporting means the same predetermined distance to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for rotating the chuck with a cup thereon,

and actuating means for moving the tool into contact with the cup on the rotating chuck.

, 24. Cup finishing apparatus comprising a cupreceiving chuck rotatable on a vertical axis, vertically movable means below the chuck adapted to support an upright partially dried clay cup, lifting means for periodically raising said cupsupporting meansthe same predetermined distance to fit successive cups over said chuck, a finishing tool disposed beside the chuck, driving means for rotating the chuck with a cup held thereon by said supporting means, and actuating means for moving the tool into contact with the cup on the rotating chuck.

WALTER H. EMERSON.

No references cited. 

